Is LG secretly working on a “Galaxy S II killer”?

Earlier this month I received an interesting tip that LG was going to reveal a “Galaxy S II killer” sometime next week. Those were some strong words, and we haven’t seen many LG leaks recently. So, it really got me thinking. What could LG possibly be working on that would make Android fans forget about the Samsung Galaxy S II?

Today the guys at GSMArena uncovered a Korean promo site for the upcoming LG U+ LTE. Highlights of the device include a 4.5-inch AH-IPS 720HD display, 1.5 GHz dual-core processor and support for LTE download speeds of 75 Mbps.

Overall, this LG device sounds very similar to the HTC Vigor/Incredible HD and I have a feeling it could become the LG Revolution 2 that is rumored for a October 20th release.

For a new superphone to be considered a current-generation killer, I think it would need to boast some more next-generation hardware. The LG made AH-IPS display is a nice start, and it appears to be superior to Samsung’s Super AMOLED Plus. But the rest of the specs are what we expect from a high-end device launching this year.

Looking back at last year, this is about the time when LG announced the first dual-core phone, which became the Optimus 2x. We heard earlier this year that LG might have the first quad-core phone, so an announcement might be coming soon.

Initially we were expecting the first quad-core phone to land this year, but NVIDIA recently said their Kal-El (Tegra 3) version for smartphones would not arrive until Q1 2012.

So is the mystery solved? Is the LG-LU6200 really the “Galaxy S II killer” we were waiting on? I’m not entirely sure, but more details should be coming next week.